./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3257808922 <...> Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts. execve("./syz-executor3257808922", ["./syz-executor3257808922"], 0x7fff4a139420 /* 10 vars */) = 0 brk(NULL) = 0x555556e57000 brk(0x555556e57c40) = 0x555556e57c40 arch_prctl(ARCH_SET_FS, 0x555556e57300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3257808922", 4096) = 28 brk(0x555556e78c40) = 0x555556e78c40 brk(0x555556e79000) = 0x555556e79000 mprotect(0x7fe8127df000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 memfd_create("syzkaller", 0) = 3 ftruncate(3, 4194320) = 0 pwrite64(3, "\x8c\xb6\x37", 3, 1) = 3 pwrite64(3, "\x00\x84\x09", 3, 4) = 3 pwrite64(3, "\xcf\x58\xf9\xb6\xb0\x97\x28\x72\x18\xce\x56\xf2\x50\xb4\x26\xfd\x15\x34\xa8\x24\x13\x97\xcf\xab\x6d\x88\x16\xfa\x4b\xb4\x5c\x3f\x9f\xdd\xf8\x76\xb2\x69\xc1\xe8\x59\xce\xbe\x21\xb7\xd9\x24\x4b\x1f\xd8\xf4\x11\xc2\xe7\x5b\x40\x44\x0e\x6e\x93\x65\x6e\xcb\xb4\x9b\xee\xac\x1c\x75\x71\x47\x8c\xa3\xc9\x9e\xc9\x07\x4a\xeb\xad\xf4\x46\x2d\x55\x73\x8c\xec\xdf\x1a\xe2\x86\x2f\x84\x19\x26\xf1\x5b\x27\x70\x6d"..., 205, 7) = 205 pwrite64(3, "\x00\x04\x00\x00\xec\x01\x00\x00\x13\x02\x00\x00\x12\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x61\x1c\xad\x49\xe1\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x10\xcc\x03\x10\x00\x01\x00\x52\x65\x49\x73\x45\x72\x33\x46\x73\x00\x00\x00\x02\x00\x00\x00\x02\x00\x01\x00\x02\x00\x01\x02\x00\x00\x00\x00\x01\x00\x00\x00\x12\x31\x2a\x23\x12\x12\x33\x12\x33\x12\x31\x12\x34\x13\x41\x24"..., 128, 65536) = 128 pwrite64(3, "\x00\x00\x00\x00\x00\x00\x05\x00\x08\x00\x00\x00\x01\x10\x00\x00\x03\x10\x00\x48\xb2\x56\x07\x81\x8b\x96\xe2\x7e\xa5\x80\x19\x56\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x9e\x08", 45, 65728) = 45 pwrite64(3, "\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x12\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x61\x1c\xad\x49\xe1\x00\x00\x00\x1e\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf4\x50\x98\x12\x2a\x16\x2b\x00\x17\x31\xda\x04\x98\x0e\x00\x00\x66\xd9\xca\x9b\x08\x8f\x7a\xfe\xe7\x42\xa2\xaa\xc9\x3d\x10\x58\x68\xc7\x2e\xdb"..., 185, 2170880) = 185 pwrite64(3, "\x01\x00\x02\x00\x5c\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x2c\x00\xd4\x0f\x01\x00\x01\x00\x00\x00\x02\x00\x00\x00\x01\x00\x00\x00\xf4\x01\x00\x00\x02\x00\x30\x00\xa4\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 96, 2174976) = 96 pwrite64(3, "\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x02\x00\x00\x00\x28\x00\x04\x00\x02\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x20\x00\x04\x00\x2e\x2e\x00\x00\x00\x00\x00\x00\x2e\x00\xe2\xff\x00\x00\x00\x00\xed\x41\x00\x00\x03\x00\x00\x3a\xc1\x65\x5f\x3a\xc1\x65\x5f\x3a\xc1\x65\xea\x00\x00\x00\x00\x00\x00\x00\x00\x00\xf3\xff", 82, 2178976) = 82 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 mkdir("./file0", 0777) = 0 [ 47.299352][ T3609] loop0: detected capacity change from 0 to 8192 [ 47.311127][ T3609] REISERFS warning: read_super_block: reiserfs filesystem is deprecated and scheduled to be removed from the kernel in 2025 [ 47.324454][ T3609] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 47.333809][ T3609] REISERFS (device loop0): using ordered data mode [ 47.340492][ T3609] reiserfs: using flush barriers mount("/dev/loop0", "./file0", "reiserfs", MS_NOSUID|MS_NOEXEC|MS_NOATIME|MS_RELATIME, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 close(3) = 0 open(".", O_RDONLY) = 3 [ 47.347081][ T3609] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 47.363787][ T3609] REISERFS (device loop0): checking transaction log (loop0) [ 47.373173][ T3609] REISERFS (device loop0): Using rupasov hash to sort names [ 47.381240][ T3609] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage. [ 47.400713][ T3609] [ 47.403165][ T3609] ====================================================== [ 47.410186][ T3609] WARNING: possible circular locking dependency detected [ 47.417207][ T3609] 6.1.0-rc4-syzkaller-00356-g8f2975c2bb4c #0 Not tainted [ 47.424215][ T3609] ------------------------------------------------------ [ 47.431299][ T3609] syz-executor325/3609 is trying to acquire lock: [ 47.437688][ T3609] ffffc90003b310f0 (&journal->j_mutex){+.+.}-{3:3}, at: do_journal_begin_r+0x340/0x1070 [ 47.447410][ T3609] [ 47.447410][ T3609] but task is already holding lock: [ 47.454750][ T3609] ffff8880232bc460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 47.463941][ T3609] [ 47.463941][ T3609] which lock already depends on the new lock. [ 47.463941][ T3609] [ 47.474321][ T3609] [ 47.474321][ T3609] the existing dependency chain (in reverse order) is: [ 47.483314][ T3609] [ 47.483314][ T3609] -> #2 (sb_writers#9){.+.+}-{0:0}: [ 47.490675][ T3609] lock_acquire+0x182/0x3c0 [ 47.495713][ T3609] sb_start_write+0x4d/0x1a0 [ 47.500808][ T3609] mnt_want_write_file+0x5a/0x1f0 [ 47.506337][ T3609] reiserfs_ioctl+0x16e/0x340 [ 47.511530][ T3609] __se_sys_ioctl+0xfb/0x170 [ 47.516624][ T3609] do_syscall_64+0x3d/0xb0 [ 47.521553][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 47.528298][ T3609] [ 47.528298][ T3609] -> #1 (&sbi->lock){+.+.}-{3:3}: [ 47.535568][ T3609] lock_acquire+0x182/0x3c0 [ 47.540577][ T3609] __mutex_lock_common+0x1bd/0x26e0 [ 47.546275][ T3609] mutex_lock_nested+0x17/0x20 [ 47.551538][ T3609] reiserfs_write_lock_nested+0x5b/0xd0 [ 47.557588][ T3609] do_journal_begin_r+0x34b/0x1070 [ 47.563215][ T3609] journal_begin+0x14b/0x350 [ 47.568312][ T3609] reiserfs_fill_super+0x172b/0x24a0 [ 47.574100][ T3609] mount_bdev+0x26c/0x3a0 [ 47.578933][ T3609] legacy_get_tree+0xea/0x180 [ 47.584122][ T3609] vfs_get_tree+0x88/0x270 [ 47.589039][ T3609] do_new_mount+0x289/0xad0 [ 47.594043][ T3609] __se_sys_mount+0x2d3/0x3c0 [ 47.599220][ T3609] do_syscall_64+0x3d/0xb0 [ 47.604224][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 47.610622][ T3609] [ 47.610622][ T3609] -> #0 (&journal->j_mutex){+.+.}-{3:3}: [ 47.618424][ T3609] validate_chain+0x1898/0x6ae0 [ 47.623780][ T3609] __lock_acquire+0x1292/0x1f60 [ 47.629230][ T3609] lock_acquire+0x182/0x3c0 [ 47.634233][ T3609] __mutex_lock_common+0x1bd/0x26e0 [ 47.639930][ T3609] mutex_lock_nested+0x17/0x20 [ 47.645204][ T3609] do_journal_begin_r+0x340/0x1070 [ 47.650817][ T3609] journal_begin+0x14b/0x350 [ 47.655906][ T3609] reiserfs_dirty_inode+0x108/0x230 [ 47.661623][ T3609] __mark_inode_dirty+0x1e7/0x600 [ 47.667168][ T3609] reiserfs_ioctl+0x293/0x340 [ 47.672534][ T3609] __se_sys_ioctl+0xfb/0x170 [ 47.677633][ T3609] do_syscall_64+0x3d/0xb0 [ 47.682594][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 47.689019][ T3609] [ 47.689019][ T3609] other info that might help us debug this: [ 47.689019][ T3609] [ 47.699317][ T3609] Chain exists of: [ 47.699317][ T3609] &journal->j_mutex --> &sbi->lock --> sb_writers#9 [ 47.699317][ T3609] [ 47.711837][ T3609] Possible unsafe locking scenario: [ 47.711837][ T3609] [ 47.719265][ T3609] CPU0 CPU1 [ 47.724608][ T3609] ---- ---- [ 47.729954][ T3609] lock(sb_writers#9); [ 47.734093][ T3609] lock(&sbi->lock); [ 47.740573][ T3609] lock(sb_writers#9); [ 47.747236][ T3609] lock(&journal->j_mutex); [ 47.751803][ T3609] [ 47.751803][ T3609] *** DEADLOCK *** [ 47.751803][ T3609] [ 47.759949][ T3609] 1 lock held by syz-executor325/3609: [ 47.765394][ T3609] #0: ffff8880232bc460 (sb_writers#9){.+.+}-{0:0}, at: mnt_want_write_file+0x5a/0x1f0 [ 47.775037][ T3609] [ 47.775037][ T3609] stack backtrace: [ 47.780911][ T3609] CPU: 1 PID: 3609 Comm: syz-executor325 Not tainted 6.1.0-rc4-syzkaller-00356-g8f2975c2bb4c #0 [ 47.791299][ T3609] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 47.801434][ T3609] Call Trace: [ 47.804709][ T3609] [ 47.807641][ T3609] dump_stack_lvl+0x1b1/0x28e [ 47.812315][ T3609] ? nf_tcp_handle_invalid+0x62e/0x62e [ 47.817781][ T3609] ? print_circular_bug+0x13e/0x1c0 [ 47.822979][ T3609] check_noncircular+0x2cc/0x390 [ 47.827914][ T3609] ? add_chain_block+0x850/0x850 [ 47.832847][ T3609] ? lockdep_lock+0x102/0x290 [ 47.837514][ T3609] ? _find_first_zero_bit+0xe8/0x110 [ 47.842873][ T3609] validate_chain+0x1898/0x6ae0 [ 47.847725][ T3609] ? reacquire_held_locks+0x650/0x650 [ 47.853092][ T3609] ? __kernel_text_address+0x9/0x40 [ 47.858281][ T3609] ? unwind_get_return_address+0x48/0x80 [ 47.863898][ T3609] ? arch_stack_walk+0x98/0xe0 [ 47.868738][ T3609] ? stack_trace_save+0x104/0x1e0 [ 47.873743][ T3609] ? stack_trace_snprint+0xf0/0xf0 [ 47.878838][ T3609] ? check_noncircular+0x1aa/0x390 [ 47.884110][ T3609] ? add_chain_block+0x850/0x850 [ 47.889066][ T3609] ? lockdep_unlock+0x144/0x2e0 [ 47.893900][ T3609] ? lockdep_lock+0x290/0x290 [ 47.898570][ T3609] ? add_lock_to_list+0x1c7/0x2d0 [ 47.903581][ T3609] ? validate_chain+0x1478/0x6ae0 [ 47.910241][ T3609] ? reacquire_held_locks+0x650/0x650 [ 47.915601][ T3609] ? lockdep_unlock+0x144/0x2e0 [ 47.920444][ T3609] ? lockdep_lock+0x290/0x290 [ 47.925103][ T3609] ? add_lock_to_list+0x1c7/0x2d0 [ 47.930113][ T3609] ? validate_chain+0x1478/0x6ae0 [ 47.935127][ T3609] ? reacquire_held_locks+0x650/0x650 [ 47.940580][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 47.946232][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 47.952304][ T3609] ? __stack_depot_save+0x41c/0x4a0 [ 47.957495][ T3609] ? trace_lock_release+0x95/0x220 [ 47.962611][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 47.967629][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 47.973359][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 47.979330][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 47.984346][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 47.989968][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 47.996027][ T3609] ? rcu_lock_release+0x5/0x20 [ 48.000778][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 48.006136][ T3609] ? rcu_lock_release+0x5/0x20 [ 48.010882][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 48.015896][ T3609] ? deref_stack_reg+0x17a/0x210 [ 48.020821][ T3609] ? preempt_count_add+0x8d/0x180 [ 48.025834][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 48.030845][ T3609] ? is_bpf_text_address+0x253/0x270 [ 48.036125][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 48.041575][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 48.046598][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 48.052212][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 48.058186][ T3609] ? rcu_lock_release+0x5/0x20 [ 48.062934][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 48.068294][ T3609] ? rcu_lock_release+0x5/0x20 [ 48.073039][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 48.078045][ T3609] ? deref_stack_reg+0x17a/0x210 [ 48.082994][ T3609] ? stack_trace_save+0x1e0/0x1e0 [ 48.088011][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 48.093648][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 48.099612][ T3609] ? rcu_lock_release+0x5/0x20 [ 48.104362][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 48.109744][ T3609] ? rcu_lock_release+0x5/0x20 [ 48.114528][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 48.119538][ T3609] ? deref_stack_reg+0x17a/0x210 [ 48.124559][ T3609] ? mark_lock+0x9a/0x350 [ 48.128884][ T3609] ? __lock_acquire+0x1292/0x1f60 [ 48.133899][ T3609] ? mark_lock+0x9a/0x350 [ 48.138299][ T3609] __lock_acquire+0x1292/0x1f60 [ 48.143137][ T3609] lock_acquire+0x182/0x3c0 [ 48.147625][ T3609] ? do_journal_begin_r+0x340/0x1070 [ 48.152900][ T3609] ? read_lock_is_recursive+0x10/0x10 [ 48.158254][ T3609] ? __might_sleep+0xc0/0xc0 [ 48.162852][ T3609] ? reiserfs_write_unlock_nested+0xd0/0x120 [ 48.168839][ T3609] ? __lock_acquire+0x1f60/0x1f60 [ 48.173848][ T3609] __mutex_lock_common+0x1bd/0x26e0 [ 48.179028][ T3609] ? do_journal_begin_r+0x340/0x1070 [ 48.184294][ T3609] ? __mutex_unlock_slowpath+0x222/0x770 [ 48.189907][ T3609] ? do_journal_begin_r+0x340/0x1070 [ 48.195176][ T3609] ? mutex_unlock+0x10/0x10 [ 48.199665][ T3609] ? mutex_lock_io_nested+0x60/0x60 [ 48.204877][ T3609] mutex_lock_nested+0x17/0x20 [ 48.209628][ T3609] do_journal_begin_r+0x340/0x1070 [ 48.214732][ T3609] ? journal_join_abort+0xe0/0xe0 [ 48.219834][ T3609] ? print_irqtrace_events+0x220/0x220 [ 48.225271][ T3609] ? ktime_get_coarse_real_ts64+0x45/0x140 [ 48.231057][ T3609] ? lockdep_hardirqs_on+0x8d/0x130 [ 48.236252][ T3609] journal_begin+0x14b/0x350 [ 48.240822][ T3609] reiserfs_dirty_inode+0x108/0x230 [ 48.246000][ T3609] ? reiserfs_free_inode+0x20/0x20 [ 48.251090][ T3609] ? rcu_read_lock_sched_held+0x87/0x110 [ 48.256722][ T3609] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 48.262681][ T3609] ? current_time+0x1d7/0x300 [ 48.267335][ T3609] ? reiserfs_free_inode+0x20/0x20 [ 48.272449][ T3609] __mark_inode_dirty+0x1e7/0x600 [ 48.277460][ T3609] ? __might_fault+0xb2/0x110 [ 48.282118][ T3609] reiserfs_ioctl+0x293/0x340 [ 48.286795][ T3609] ? __se_sys_ioctl+0xf0/0x170 [ 48.291546][ T3609] ? reiserfs_unpack+0x390/0x390 [ 48.296462][ T3609] __se_sys_ioctl+0xfb/0x170 [ 48.301040][ T3609] do_syscall_64+0x3d/0xb0 [ 48.305435][ T3609] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 48.311396][ T3609] RIP: 0033:0x7fe812773159 [ 48.315794][ T3609] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 48.335391][ T3609] RSP: 002b:00007fff0df35818 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 48.344193][ T3609] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe812773159 ioctl(5, FS_IOC_SETVERSION, 0x20000080) = 0 exit_group(0) = ? +++ exited with 0 +++ [ 48.352146][ T3609] RDX: 0000000